Mediaplus UK
Media Operations Manager
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Media Operations Manager
About Mediaplus UK
As part of the Serviceplan Group, Mediaplus UK is an independent media planning & buying agency which was founded in 1982 with a mission to shake up a network-dominated industry. Over 40 years on and we are still proudly independent, however, we have grown in size with over 160 employees across 3 UK offices in London, Manchester and Birmingham, as well as having our own behavioural consultancy, Behave.
We are the only media agency built on the principles of behavioural science. We combine best-in-class media, data & research to deliver authentic, creative and effective media solutions that address the real influences on people’s behaviour.
We work across the full spectrum of media planning and buying services, with fantastic teams dedicated to everything from client leadership and media planning/activation to SEO and influencer marketing as well as advanced data solutions.
The Role
We are looking for a Media Operations Manager to join our agency team. This role critical to ensuring our campaigns run smoothly, accurately, and at scale.
You will own and evolve the systems, tools, and processes that underpin everything we do — from how campaigns are built and trafficked, to how data flows between platforms, to how the team collaborates day to day. You will be the person others turn to when something is broken, unclear, or needs to be done better.
Beyond operations, you will bring strong hands-on experience with Campaign Manager 360, a working knowledge of the broader digital ad tech ecosystem, and the ability to support media finance reconciliation activity where needed. You are organised, methodical, and genuinely passionate about making things work well.
Key Responsibilities
Media Operations, Tools & Processes
This is the core focus of the role. You will be responsible for the operational infrastructure that enables the agency to deliver campaigns efficiently and consistently at scale.
- Establishing, maintaining, and improving the processes, standards, and workflows that govern how campaigns are delivered across the agency.
- Audit and optimise existing operational workflows, identifying friction points, manual bottlenecks, and opportunities to automate or streamline.
- Develop, document, and enforce standard operating procedures (SOPs) across all key stages of campaign delivery - from briefing and setup through to reporting and post-campaign analysis.
- Support the evaluation, onboarding of media operations tools and lead the day-to-day management of media operations tooling, ensuring the team is equipped with the right technology to work effectively.
- Act as the primary point of escalation for operational issues — triaging problems quickly, resolving root causes, and implementing preventative measures.
- Drive consistency and quality across campaign builds through robust QA frameworks, naming conventions, and governance standards.
- Champion a culture of operational excellence — proactively sharing knowledge, running team training sessions, and raising standards across the wider media team.
- Collaborate closely with media planning, buying, data, and finance teams to ensure seamless handoffs and clear accountability at every stage of the campaign lifecycle.
- Maintain a clear view of workload and capacity across the operations function, flagging risks early and managing priorities effectively.
- Stay ahead of developments in ad tech, media tooling, and industry best practice — regularly assessing their relevance and impact on agency operations.
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Ad Operations & Campaign Delivery
- Oversee the trafficking of creative assets across digital campaigns, ensuring accurate and timely delivery across all relevant platforms, formats, and publishers.
- Manage campaign setup and delivery monitoring across display, video, and programmatic channels -proactively flagging and resolving issues.
- Act as a technical point of contact for ad serving queries, creative spec issues, and discrepancy investigations.
- Ensure all campaign activity meets brand safety, verification, and compliance requirements.
- Build and maintain standardised reporting templates within CM360, providing clear and actionable data to internal and client stakeholders.
- Manage onboarding of new clients and campaigns into CM360, including account structure governance and naming convention enforcement.
- Keep the team informed of CM360 and Google Marketing Platform product updates, translating changes into operational impact and action.
Finance Reconciliation - Mediaocean Prisma
- Support media finance reconciliation within Mediaocean Prisma, ensuring insertion orders, spend data, and billing records are accurate and up to date.
- Identify and execute automation in media reconciliation.
- Work with finance and investment teams to identify and resolve discrepancies between planned and actual media spend.
- Contribute to monthly and end-of-campaign reconciliation processes, maintaining clean and auditable records in Prisma.
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Skills & Experience
Essential
- 2–3 years of experience in a media operations or ad operations role within an advertising or media agency.
- Proven track record of owning and improving operational processes, workflows, and tooling at team or agency level.
- Strong hands-on experience with Campaign Manager 360 - including campaign trafficking, floodlight tagging, and reporting.
- Solid understanding of the digital advertising ecosystem: ad servers, DSPs, SSPs, verification tools, and measurement platforms.
- Experience building, documenting, and maintaining SOPs and operational governance frameworks.
- Excellent analytical and problem-solving skills - able to investigate discrepancies, identify root causes, and implement fixes.
- Strong project management and prioritisation skills, with the ability to manage multiple workstreams simultaneously.
- Clear, confident communicator - comfortable working across planning, buying, data, tech, and finance teams.
Desirable
- Experience with Mediaocean Prisma for media finance and reconciliation.
- Familiarity with Google Marketing Platform products beyond CM360 (e.g. DV360, SA360).
- Knowledge of tag management systems i.e. Google Tag Manager
- Experience with ad verification and brand safety platforms (e.g. IAS, DoubleVerify).
- Exposure to programmatic buying platforms and audience management tools.
- Experience managing or mentoring junior operations team members.
Personal Attributes
- Highly organised with exceptional attention to detail - you notice what others miss.
- Process-driven and improvement-minded - you are never satisfied with "good enough" when better is achievable.
- Calm under pressure, with strong instincts for prioritisation in a fast-moving agency environment.
- A natural collaborator who builds strong relationships across teams and levels of seniority.
- Proactive and self-directed - you identify problems before they escalate and take ownership of the solution.
- Generous with your knowledge - you enjoy developing others and raising the bar for the whole team.
Diversity & Inclusion
We are committed to diversity & inclusion and providing equal opportunities for everyone. We are dedicated to ensuring our processes are free from any form of discrimination or bias, right from the application process to life as part of the Mediaplus UK team.
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